Ox-yoke



L. DEDERICK.

0X-Yoke.

.N0. 12,158 I Patented Jan. 2,- 185-5.

la a 1 x UNITED STATES PATENT OFFICE.

LEVI DEDERICK, OF ALBANY, NEW YORK.

OX-YOKE.

Specification of Letters Patent 1\To.- 12,158, dated January 2, 1855.

. making a part of this specification, in

which- Figure 1 is a top view of the neck block detached from the beamshowing the position of the flanged thimble and the form of the concaveside of the separate neck block. Fig. 2 is a vertical section of thebeam and neck block, showing the manner of securing the center bolt inthe thimble and the thimble in the neck block.

Similar letters refer to corresponding parts in both figures. l

I am aware that ox yokes with separate neck blocks secured to the beamby a bolt in the center of the neck block upon which bolt it canvibrate, have been and are in use. But my invention consists in theimproved manner of securing the bolt in the neck block by which it isfastened to the beam.

In ox yokes heretofore made with separate neck block the center bolt waspassed through and the head of it exposed and liable to rust and becomeloose by the constant action of the yoke, and chafe the neck of the ox.In. my improvement this difficulty is obviated by not perforating thatpart of the neck block which rests directly upon the neck of the ox butleaving the wood surface whole and smooth. I

To enable others skilled in the art to make and use my invention I willproceed to describe its construction.

A, Figs. 1 and 2, represents the separate neck block, two of which withthe beam constitute the complete yoke.

B, Fig. 2, represents a vertical section of the beam and of the neckblock A. I

C is the center bolt by which the neck block A, is attached to the beamB.

D is a flanged thimble having a coarse thread cut on the thimble partand a hole through its center to receive the bolt C. This thimble isscrewed into the neck-block A from the upper side until the flange isflush with the wood, into a recess suitably prepared. The flange of thethimble D, "is further secured by wood screws (a) (a) (a) Fig. l. I

The bolt C, has a conical shaped head (6) which fits in a correspondingrecess in the thimble D, so as to enable it to render in the thimble D,and still remain in its place. The bolt C, passes through the thimble D,and through the beam B, and receives a key E, on the upper side of thebeam.

F, are the holes in the neck block A, for the purpose of receiving thebows. The bows'are fastened in the neck block A, by a pin ('0). In thebeam are several holes (d) for the purpose of lengthening and shorteningthe yoke.

Instead of making the neck block A,'

straight or circular on the sides, I make the side against which I wishthe ox to draw of a concave form as shown at G, Fig. l. The advantage ofthis is that it fits the neck of the ox closer and more like a collarand enables him to draw with greater ease.

The concavity G, Fig. 1, and the concavity H, Fig. 2, are arcs ofcircles smaller than is usual in ox yokes and hence the neck block fitsthe neck, of the ox closely and will not vibrate by the action of thebeam B, caused by the unequal stepping of oxen.

I am aware that a patent has been granted to Albert Vose for asemi-revolving neck block, but my mode of fastening the block I regardas an improvement upon that invention, therefore What I claim as new anddesire to secure by Letters Patent is The flanged thimble for securingthe center bolts of separate vibrating neck blocks, from the upper sideand thus avoid perforating the wood on the under side which rests uponthe neck of the ox, as described.

LEVI DEDERICK.

Witnesses WILLIAM DEERING, HUGH DIcKsoN.

